Our Covid vaccine is 90% effective: Novavax said

Novavax a Biotech firm claimed that its Covid-19 vaccine was shown to be safe and 90.4% effective overall in phase three clinical trials conducted in nearly 30,000 participants across the United States and Mexico. The two-dose vaccine was found to be 100% effective in preventing moderate and severe disease and 93% effective against some variants. The company said it plans to file for authorization with the Food and Drug Administration in the third quarter. 

Among the 29,960 participants, 77 cases were confirmed where only 14 cases received the vaccine where the rest were on placebo. Novavax said the vaccine appears to be effective against some variants, including the Alpha variant that was identified in the UK first.